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//! \file ArcVAFS.cs
//! \date Sun Jan 10 04:19:47 2016
//! \brief Softpal engine resource archive.
//
// Copyright (C) 2016 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
namespace GameRes.Formats.Softpal
{
[Export(typeof(ArchiveFormat))]
public class VafsOpener : ArchiveFormat
{
public override string Tag { get { return "VAFS"; } }
public override string Description { get { return "Softpal engine resource archive"; } }
public override uint Signature { get { return 0x53464156; } } // 'VAFS'
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public VafsOpener ()
{
Extensions = new string[] { "052" };
}
public override ArcFile TryOpen (ArcView file)
{
if ('H' != file.View.ReadByte (4))
return null;
uint index_offset = 0x10;
uint data_offset = file.View.ReadUInt32 (index_offset);
if (data_offset < index_offset || data_offset >= file.MaxOffset)
return null;
int count = (int)(data_offset - index_offset) / 4;
if (!IsSaneCount (count))
return null;
uint next_offset = data_offset;
var base_name = Path.GetFileNameWithoutExtension (file.Name).ToUpperInvariant();
bool is_audio = "BGM" == base_name;
var dir = new List<Entry> (count);
for (int i = 0; next_offset != 0 && next_offset != file.MaxOffset && i < count; ++i)
{
index_offset += 4;
var name = string.Format("{0}#{1:D5}", base_name, i);
var entry = AutoEntry.Create (file, next_offset, name);
next_offset = index_offset == data_offset ? 0 : file.View.ReadUInt32 (index_offset);
entry.Size = (uint)((0 != next_offset ? (long)next_offset : file.MaxOffset) - entry.Offset);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
}
}